by Tony Armstrong, Linear Technology ICs that drive LEDs handle the complexities of illumination that include management of short circuits and squelching electrical noise. It’s no secret that LED lighting consumes much less energy than alternative forms of illumination and that the cost of LED lights is dropping fast. Consequently, the U.S. Dept. of Energy […]
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Hot Swap controller with dual MOSFET drive enables 100-A designs
Linear Technology Corporation introduces the LTC4282, an energy monitoring Hot Swap controller with dual MOSFET drive to enable 100A and higher current board designs. The LTC4282 ensures safe board insertion and removal from live 2.9V to 33V backplanes by controlling external N-channel MOSFETs to gently power up capacitors, avoiding sparks, connector damage and system glitches. […]
Programmable power supply sequencer, voltage supervisor handles six voltage rails
Linear Technology Corporation introduces the LTC2937, a programmable power supply sequencer and voltage supervisor, with built-in EEPROM, for six voltage rails. The LTC2937 is designed to carefully supervise and control FPGA/ASIC/microprocessor point-of-load supplies, which require tight accuracy and complex sequencing to avoid damage to the processor. The LTC2937 turns supplies on and off in a […]
1.5-A LDO linear regulator can do cable-drop compensation
Linear Technology Corporation announces the LT3091, the latest addition to our LDO+™ family, a 1.5A low dropout negative linear regulator featuring low noise, rail-to-rail operation, precision programmable current limit and a bidirectional output current monitor. The device is cable-drop compensation capable, easily paralleled for higher current or circuit board heat spreading, and configurable as a […]
Power supply generates dual outputs from single positive input
Linear Technology Corporation announces the LTC3265, a high voltage, highly integrated, low noise dual output power supply which takes a single positive input supply (VIN_P) and generates low noise bipolar rails up to ±2•VIN_P without any inductors. The device includes a boost doubling charge pump, an inverting charge pump and two low dropout (LDO) regulators. […]
Dual-output multiphase synchronous step-down DC/DC controller for asics, FPGAs
MILPITAS, CA – August 18, 2015 – Linear Technology Corporation introduces the LTC3877, a dual output multiphase synchronous step-down DC/DC controller with 6-bit voltage identification (VID) control that enables 10 mV output voltage step resolution, a necessary feature when powering FPGAs and ASICs with tight input voltage requirements. The LTC3877 operates over an input voltage […]
Dual-output synchronous step-down
DC/DC controller works on PMBus
MILPITAS, CA – August 17, 2015 – Linear Technology Corporation announces the LTC3887-1, a dual output synchronous step-down DC/DC controller with I²C-based PMBus interface for digital power system management. The LTC3887-1 differs from the previously released LTC3887 by providing a three-state PWM signal, enabling the use of DrMOS, power blocks or similar power stages. The […]
Buck dc/dc converter provides 8 A for four outputs
Linear Technology Corporation announces the LTC3371, a highly integrated general-purpose power management solution for systems requiring multiple low voltage power supplies. The device features four synchronous buck converters, each powered from independent 2.25V to 5.5V inputs, and each configurable to share up to four of eight available 1A power stages. With eight unique output current […]
Temperature range boost for FMEA-compliant LDO
Linear Technology Corporation announces a new wider temperature range, H grade version of the LT3007, the latest member in a family of high voltage, micropower, robust PNP-based LDOs, featuring an ultralow 3µA quiescent current. The device’s H grade 150°C junction temperature rating enables high temperature or high power automotive and industrial applications. Its high input […]
20-A step-down regulator optimized for low V IN/low V OUT
Linear Technology Corporation introduces the LTM4639, a 20A DC/DC step-down µModule® (micromodule) regulator capable of converting 2.5V to 7V main-power system rails to point-of-load voltages as low as 0.6V with optimum efficiency. In complex rack-mount systems, improved voltage conversion efficiency results in savings in energy consumption, thermal management and equipment size. Applications include cloud-based equipment […]